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Timing Belt change

Posted: Fri Mar 06, 2020 9:18 am
by Gotin
Prior to Spring, the timing belt will be changed. Some questions for others who regularly do it themselves.
In my previous CRXs, I would brace the motor with a jack, this is left out of the FSM, I am guessing because the motor it braced by the a/c mount, do you still brace the motor? I would always replace the timing belt tensioner and bolt with the belt but the FSM does not call for it, what have you done (assuming it spins just fine)? FSM calls for the replacement of the 2 nuts and 1 bolt that hold the motor mount on, thoughts? Any and all info is appreciated.

Re: Timing Belt change

Posted: Fri Mar 06, 2020 9:57 am
by aw614
Interesting, I didnt realize the FSM recommended the replacement of the 2 nuts and bolt for that driver side mount, I've reused them on my cars. Are they tty stretch bolts?

The two times I've done my timing belt, I had another jack and wood to hold the motor up, I just did it as a precaution.

On my d series and my b series cars I replaced the tensioner just in case. The bolt I can't recall, but if it doesn't cost much more, I would just get a new one.

Re: Timing Belt change

Posted: Fri Mar 06, 2020 11:28 am
by coolhandluke
If I'm understanding correctly:
Q1: Should one brace the motor while the driver's side motor mount is removed?
A1: I always place wood on a jack and brace my motor, but I do not have the AC mount. I see it as good practice regardless, as it reduces strain/wear on the other motor mounts.
Q2: What does one typically replace with a timing belt?
A2: I always replace the following:
-OEM timing belt
-OEM tensioner
-OEM spring
-Valve cover gasket if aged
*I do not replace the motor mount bolts

I replace my timing belt every three years, regardless of mileage. This is for cheap insurance and I have larger cams.

Re: Timing Belt change

Posted: Fri Mar 06, 2020 2:26 pm
by Gotin
Thank you for the clarification and information.

Re: Timing Belt change

Posted: Fri Mar 06, 2020 6:27 pm
by coolhandluke
I would add, inspecting seal on timing cover. That rubber ages as well.

Re: Timing Belt change

Posted: Sat Mar 07, 2020 7:17 pm
by DC231
i have never changed the bolt or nuts on any of the cars i have worked on in the past 20 years. you should definitely brace the engine with something so you dont strain the other mounts. every timing belt i do gets the full service unless the owner is to broke to afford it. in this order timing belt, tensioner, water pump, front main seal, cam seals, timing cover gaskets. OEM parts for the win!! the only gasket i use on b series that is not OEM is the oil pan gasket felpro has a metal/rubber molded gasket that works way better than the OEM oil pan gasket.

Re: Timing Belt change

Posted: Sat Mar 07, 2020 8:24 pm
by Stin1
I would include the tensioner and bolt .

Re: Timing Belt change

Posted: Mon Mar 09, 2020 11:10 am
by coolhandluke
DC231 wrote: Sat Mar 07, 2020 7:17 pm ...every timing belt i do gets the full service unless the owner is to broke to afford it. in this order timing belt, tensioner, water pump, front main seal, cam seals, timing cover gaskets...
The front main seal is a good item to call out. I'm always nervous on cam seals.